User Agent

Name: User Agent
Rating: 3.2857 (7 reviews)
Author: SandVPN

Change the identity your browser announces — User-Agent, client hints and navigator properties — always as one coherent set. Per-site rules, a free-form User-Agent field, and a built-in detection diagnostic. No account, nothing collected.

Overview

Firefox Add-ons Store

Daily users

374 ▼ 15

Data as of 2026-08-15

Rating:

3.29

(7)

Version:

2.1

Last updated: 2026-07-29

Features & Capabilities

The User Agent Chrome extension allows seamless switching of your browser's user agent string. It provides several advanced methods for user-agent spoofing, letting you test how websites detect or respond to different browsers and devices. With this tool, users can quickly and easily change their browser's identity for testing or privacy purposes. The extension is designed for efficiency and versatility, helping developers, testers, and privacy-conscious users verify browser compatibility or mask their browsing fingerprint. Test your browser's spoofing effectiveness with the included link: https://webbrowsertools.com/useragent/

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security

By:

SandVPN

Daily users:

374 -15

Rating:

3.29

(7)

Version:

2.1 Last updated: 2026-07-29

Version code:

6382524

Creation date:

2022-09-09

Risk:

Permissions:

Size:

42.92KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-15

Compare stats and ranking:

Ranking

# 5,791 ▼ 131

Other rankings

#5 in agent keyword 62

#22 in agenda keyword 23

#94 in property keyword 17 ▼ 2

#169 in string keyword 12 ▼ 4

#187 in rule keyword 9 ▼ 5

Upgrade to see more rankings

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

SandVPN

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/user-agent/

Permission Change History

2026-07-30: Version 1.3 → 2.1

Add Permissions: webNavigation tabs http://*/* https://*/*

Remove Permissions: <all_urls>

User Reviews

Terrible UI for User-Agent selection. It's either "Random" or "Random, but for a specific platform". Largely defeats the point of being able to select a different UA.

by Re*****, 2026-05-21

Does Not Work. Firefox 115 ESR - cannot change User Agent to any other version - no interface or controls. Un-installed it.

by Se*****, 2026-04-28

View all user reviews ›

Is User Agent Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

User Agent requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

User Agent is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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